US20150156743A1 - Method and apparatus for updating tracking area in wireless communication system - Google Patents
Method and apparatus for updating tracking area in wireless communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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Definitions
- the present invention relates to wireless communications, and more particularly, to a method and apparatus for updating a tracking area in a wireless communication system.
- Universal mobile telecommunications system is a 3rd generation (3G) asynchronous mobile communication system operating in wideband code division multiple access (WCDMA) based on European systems, global system for mobile communications (GSM) and general packet radio services (GPRS).
- WCDMA wideband code division multiple access
- GSM global system for mobile communications
- GPRS general packet radio services
- LTE long-term evolution
- 3GPP 3rd generation partnership project
- a device-to-device (D2D) connection technique may be introduced in a wireless communication system.
- the D2D connection technique refers to a technique for transmitting and receiving data not via a base station (BS) since devices such as a user equipment (UE) or the like are connected to each other. That is, one device can communicate with another device via the BS, and can directly communicate with another device not via the BS.
- BS base station
- UE user equipment
- the present invention provides a method and apparatus for updating a tracking area for device-to-device (D2D0 connection in a wireless communication system.
- the present invention provides a method for tracking area update of a second mobile device due to a tracking area update of a first mobile device when the first mobile device and the second mobile device are connected by D2D connection.
- a method for updating, by a second mobile device, a tracking area for a device-to-device (D2D) connection in a wireless communication system includes receiving a tracking area update (TAU) request message from a first mobile device which has a D2D connection with the second mobile device, and transmitting a TAU message to a network.
- TAU tracking area update
- the TAU request message may include a tracking area code and an identity of the first mobile device.
- the TAU message may include an identity of the first mobile device and a D2D connection indication which informs the network that the second mobile device is connected to the network via the D2D connection.
- the TAU message may include information on the second mobile device.
- the information on the second mobile device may be an identity of the second mobile device.
- the TAU message may be transmitted to a mobility management entity (MME) via the first mobile device and a serving eNodeB (eNB).
- MME mobility management entity
- eNB serving eNodeB
- the TAU message may be transmitted to a serving eNB directly.
- the method may further include receiving a D2D paging message from the network, and transmitting a paging response message to the network.
- the paging response message may include an identity of the second mobile device and a D2D connection indication which informs the network that the second mobile device is connected to the network via the D2D connection.
- a method for updating, by a first mobile device, a tracking area for a device-to-device (D2D) connection in a wireless communication system includes transmitting a tracking area update (TAU) request message, to a second mobile device which has a D2D connection with the first mobile device, due to TAU of the first mobile device.
- TAU tracking area update
- FIG. 1 shows a structure of a wireless communication system.
- FIG. 2 is a diagram showing radio interface protocol architecture for a control plane.
- FIG. 3 is a diagram showing radio interface protocol architecture for a user plane.
- FIG. 4 shows an example of a physical channel structure.
- FIG. 5 shows transmission of a paging channel.
- FIG. 6 shows a paging procedure
- FIG. 7 shows an example of a tracking update procedure.
- FIG. 8 shows an example of a method for updating a tracking area for D2D connection according to an embodiment of the present invention.
- FIG. 9 shows an example of a method for updating a tracking area for D2D connection and a method for paging for D2D connection in an E-UTRAN planned mode according to an embodiment of the present invention.
- FIG. 10 is a block diagram showing wireless communication system to implement an embodiment of the present invention.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency division multiple access
- the CDMA can be implemented with a radio technology such as universal terrestrial radio access (UTRA) or CDMA-2000.
- UTRA universal terrestrial radio access
- the TDMA can be implemented with a radio technology such as global system for mobile communications (GSM)/general packet ratio service (GPRS)/enhanced data rate for GSM evolution (EDGE).
- GSM global system for mobile communications
- GPRS general packet ratio service
- EDGE enhanced data rate for GSM evolution
- the OFDMA can be implemented with a radio technology such as institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, evolved UTRA (E-UTRA), etc.
- IEEE 802.16m is evolved from IEEE 802.16e, and provides backward compatibility with a system based on the IEEE 802.16e.
- the UTRA is a part of a universal mobile telecommunication system (UMTS).
- 3 rd generation partnership project (3GPP) long term evolution (LTE) is a part of an evolved UMTS (E-UMTS) using the E-UTRA.
- 3GPP LTE uses the OFDMA in a downlink and uses the SC-FDMA in an uplink.
- LTE-advanced (LTE-A) is an evolution of the LTE.
- FIG. 1 shows a structure of a wireless communication system.
- the structure of FIG. 1 is an example of a network structure of an evolved-UMTS terrestrial radio access network (E-UTRAN).
- An E-UTRAN system may be a 3GPP LTE/LTE-A system.
- An evolved-UMTS terrestrial radio access network (E-UTRAN) includes a user equipment (UE) 10 and a base station (BS) 20 which provides a control plane and a user plane to the UE.
- the user equipment (UE) 10 may be fixed or mobile, and may be referred to as another terminology, such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a wireless device, etc.
- MS mobile station
- UT user terminal
- SS subscriber station
- wireless device etc.
- the BS 20 is generally a fixed station that communicates with the UE 10 and may be referred to as another terminology, such as an evolved node-B (eNB), a base transceiver system (BTS), an access point, etc.
- eNB evolved node-B
- BTS base transceiver system
- a single cell is configured to have one of bandwidths selected from 1.25, 2.5, 5, 10, and 20 MHz, etc., and provides downlink or uplink transmission services to several UEs. In this case, different cells can be configured to provide different bandwidths.
- the BSs 20 are interconnected by means of an X2 interface.
- the BSs 20 are connected to an evolved packet core (EPC) by means of an S1 interface.
- the EPC may consist of a mobility management entity (MME) 30 , a serving gateway (S-GW), and a packet data network (PDN) gateway (PDN-GW).
- MME mobility management entity
- S-GW serving gateway
- PDN-GW packet data network gateway
- the MME has UE access information or UE capability information, and such information may be primarily used in UE mobility management.
- the S-GW is a gateway of which an endpoint is an E-UTRAN.
- the PDN-GW is a gateway of which an endpoint is a PDN.
- the BSs 20 are connected to the MME 30 by means of an S1-MME, and are connected to the S-GW by means of S1-U.
- the S1 interface supports a many-to-many relation between the BS 20 and the MME/S-GW 30 .
- a downlink (DL) denotes communication from the BS 20 to the UE 10
- an uplink (UL) denotes communication from the UE 10 to the BS 20
- a transmitter may be a part of the BS 20
- a receiver may be a part of the UE 10
- the transmitter may be a part of the UE 10
- the receiver may be a part of the BS 20 .
- FIG. 2 is a diagram showing radio interface protocol architecture for a control plane.
- FIG. 3 is a diagram showing radio interface protocol architecture for a user plane.
- Layers of a radio interface protocol between the UE and the E-UTRAN can be classified into a first layer (L1), a second layer (L2), and a third layer (L3) based on the lower three layers of the open system interconnection (OSI) model that is well-known in the communication system.
- the radio interface protocol between the UE and the E-UTRAN can be horizontally divided into a physical layer, a data link layer, and a network layer, and can be vertically divided into a control plane which is a protocol stack for control signal transmission and a user plane which is a protocol stack for data information transmission.
- the layers of the radio interface protocol exist in pairs at the UE and the E-UTRAN.
- a physical (PHY) layer belonging to the L1 provides an upper layer with an information transfer service through a physical channel.
- the PHY layer is connected to a medium access control (MAC) layer which is an upper layer of the PHY layer through a transport channel.
- MAC medium access control
- Data is transferred between the MAC layer and the PHY layer through the transport channel.
- the transport channel is classified according to how and with what characteristics data is transmitted through a radio interface.
- PHY layers i.e., a PHY layer of a transmitter and a PHY layer of a receiver, data is transferred through the physical channel.
- the physical channel is modulated using an orthogonal frequency division multiplexing (OFDM) scheme, and utilizes time and frequency as a radio resource.
- OFDM orthogonal frequency division multiplexing
- the PHY layer uses several physical control channels.
- a physical downlink control channel (PDCCH) reports to a UE about resource allocation of a paging channel (PCH) and a downlink shared channel (DL-SCH), and hybrid automatic repeat request (HARQ) information related to the DL-SCH.
- the PDCCH can carry a UL grant for reporting to the UE about resource allocation of UL transmission.
- a physical control format indicator channel (PCFICH) reports the number of OFDM symbols used for PDCCHs to the UE, and is transmitted in every subframe.
- a physical hybrid ARQ indicator channel (PHICH) carries an HARQ ACK/NACK signal in response to UL transmission.
- a physical uplink control channel (PUCCH) carries UL control information such as HARQ ACK/NACK for DL transmission, scheduling request, and CQI.
- a physical uplink shared channel (PUSCH) carries a UL-uplink shared channel (SCH).
- FIG. 4 shows an example of a physical channel structure.
- a physical channel consists of a plurality of subframes in a time domain and a plurality of subcarriers in a frequency domain.
- One subframe consists of a plurality of symbols in the time domain.
- One subframe consists of a plurality of resource blocks (RBs).
- One RB consists of a plurality of symbols and a plurality of subcarriers.
- each subframe can use specific subcarriers of specific symbols of a corresponding subframe for a PDCCH. For example, a first symbol of the subframe can be used for the PDCCH.
- a transmission time interval (TTI) which is a unit time for data transmission may be equal to a length of one subframe.
- a DL transport channel for transmitting data from the network to the UE includes a broadcast channel (BCH) for transmitting system information, a paging channel (PCH) for transmitting a paging message, a DL-SCH for transmitting user traffic or control signals, etc.
- the system information carries one or more system information blocks. All system information blocks can be transmitted with the same periodicity. Traffic or control signals of a multimedia broadcast/multicast service (MBMS) are transmitted through a multicast channel (MCH).
- a UL transport channel for transmitting data from the UE to the network includes a random access channel (RACH) for transmitting an initial control message, a UL-SCH for transmitting user traffic or control signals, etc.
- RACH random access channel
- a MAC layer belonging to the L2 provides a service to a higher layer, i.e., a radio link control (RLC), through a logical channel.
- a function of the MAC layer includes mapping between the logical channel and the transport channel and multiplexing/de-multiplexing for a transport block provided to a physical channel on a transport channel of a MAC service data unit (SDU) belonging to the logical channel.
- the logical channel is located above the transport channel, and is mapped to the transport channel.
- the logical channel can be divided into a control channel for delivering control region information and a traffic channel for delivering user region information.
- the logical includes a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), a multicast traffic channel (MTCH), etc.
- BCCH broadcast control channel
- PCCH paging control channel
- CCCH common control channel
- MCCH multicast control channel
- An RLC layer belonging to the L2 supports reliable data transmission.
- a function of the RLC layer includes RLC SDU concatenation, segmentation, and reassembly.
- the RLC layer provides three operation modes, i.e., a transparent mode (TM), an unacknowledged mode (UM), and an acknowledged mode (AM).
- TM transparent mode
- UM unacknowledged mode
- AM acknowledged mode
- the AM RLC provides error correction by using an automatic repeat request (ARQ).
- a function of the RLC layer can be implemented with a functional block inside the MAC layer. In this case, the RLC layer may not exist.
- a packet data convergence protocol (PDCP) layer belongs to the L2.
- a function of a packet data convergence protocol (PDCP) layer in the user plane includes user data delivery, header compression, and ciphering.
- the header compression has a function for decreasing a size of an IP packet header which contains relatively large-sized and unnecessary control information, to support effective transmission in a radio section having a narrow bandwidth.
- a function of a PDCP layer in the control plane includes control-plane data delivery and ciphering/integrity protection.
- a radio resource control (RRC) layer belonging to the L3 is defined only in the control plane.
- the RRC layer takes a role of controlling a radio resource between the UE and the network. For this, the UE and the network exchange an RRC message through the RRC layer.
- the RRC layer serves to control the logical channel, the transport channel, and the physical channel in association with configuration, reconfiguration, and release of RBs.
- An RB is a logical path provided by the L2 for data delivery between the UE and the network.
- the configuration of the RB implies a process for specifying a radio protocol layer and channel properties to provide a particular service and for determining respective detailed parameters and operations.
- the RB can be classified into two types, i.e., a signaling RB (SRB) and a data RB (DRB).
- SRB signaling RB
- DRB data RB
- the SRB is used as a path for transmitting an RRC message in the control plane.
- the DRB is used as a path for transmitting user data in the user plane.
- a radio resource state (RRC) state indicates whether an RRC of a user equipment (UE) is logically connected to an RRC of a network.
- RRC radio resource state
- UE user equipment
- RRC_CONNECTED RRC connected state
- RRC_IDLE RRC idle state
- a core network manages the UE in unit of a tracking area (TA) which is a larger area than a cell. That is, only the existence of the UE in the RRC_IDLE is recognized in unit of a large area, and the UE must transition to the RRC_CONNECTED to receive a typical mobile communication service such as voice or data communication.
- the UE When the user initially powers on the UE, the UE first searches for a proper cell and then remains in the RRC_IDLE in the cell. When there is a need to establish an RRC connection, the UE which remains in the RRC_IDLE may establish the RRC connection with the RRC of the network through an RRC connection procedure and then may transition to the RRC_CONNECTED. The UE which remains in the RRC_IDLE may need to establish the RRC connection with the network when uplink data transmission is necessary due to a user's call attempt or the like or when there is a need to transmit a response message upon receiving a paging message from the network.
- a non-access stratum (NAS) layer belongs to an upper layer of the RRC layer and serves to perform session management, mobility management, or the like.
- EPS mobility management (EMM)-REGISTERED state i.e., an EPS mobility management (EMM)-REGISTERED state and an EMM-DEREGISTERED state.
- EMM-DEREGISTERED state i.e., an EMM-DEREGISTERED state
- the two states are applicable to the UE and the MME.
- the UE is initially in the EMM-DEREGISTERED.
- the UE may perform a process of registering to the network through an initial attach procedure. If the initial attach procedure is successfully performed, the UE and the MME may be in the EMM-REGISTERED.
- two states i.e., an EPS connection management (ECM)-IDLE state and an ECM-CONNECTED state
- the two states are applicable to the UE and the MME.
- ECM EPS connection management
- the UE in the ECM-IDLE When the UE in the ECM-IDLE establishes an RRC connection with the E-UTRAN, the UE may be in the ECM-CONNECTED.
- the MME in the ECM-IDLE establishes an S1 connection with the E-UTRAN, the MME may be in the ECM-CONNECTED.
- the E-UTRAN does not have information on the context of the UE.
- the UE in the ECM-IDLE can perform a UE-based mobility related procedure such as cell selection or cell reselection without having to receive a command of the network. If a location of the UE in the ECM-IDLE becomes different from a location known to the network, the UE may report the location of the UE to the network through a tracking area update procedure. On the other hand, the mobility of the UE in the ECM-CONNECTED may be managed by the command of the network.
- FIG. 5 shows transmission of a paging channel.
- the paging message When there is data to be transmitted by a network to a specific UE or a call delivered to the specific UE, the paging message is used to search and wake up the UE.
- an E-UTRAN may search for a certain location area in which the UE is currently located, and may transmit the paging message through one cell belonging to the location area in which the UE is located. For this, whenever there is a change in the location area, the UE may report the change to the network, which is called a location area update procedure.
- a plurality of paging cycles is configured, and one paging cycle may include a plurality of paging occasions.
- the UE may perform discontinuous reception (DRX) to decrease power consumption.
- the network may configure a plurality of paging occasions for every time period called a paging cycle, and a specific UE may receive the paging message by monitoring a paging channel only during a specific paging occasion. The UE does not monitor the paging channel in a time other than the specific paging occasion assigned to the UE.
- One paging occasion may correspond to one TTI.
- the system information is necessary information which must be known to the UE to access the network.
- the UE must entirely receive the system information before the network access, and must always have the latest system information.
- the system information is information which must be known to all UEs in one cell, the BS may periodically transmit the system information.
- the system information may include a master information block (MIB), a scheduling block (SB), a system information block (SIB), etc.
- the MIB may indicate a physical configuration (e.g., a bandwidth, etc.) of a corresponding cell.
- the SB may indicate transmission information of SIBs, for example, a transmission period of the SIBs.
- the SIB is a set of related system information. For example, a certain SIB may include only information of a neighbor cell, and another SIB may include only information of an uplink radio channel used by the UE.
- the BS may transmit the paging message to the UE to report whether there is a change in the system information.
- the paging message may include a system information change indicator. If the paging message received according to the paging cycle includes the system information change indicator, the UE may receive the system information transmitted through a BCCH which is a logical channel.
- FIG. 6 shows a paging procedure. It may be referred to Section 5.3.2 of 3GPP TS 36.331 V10.5.0 (2012-03).
- the purpose of this procedure is to transmit paging information to a UE in RRC_IDLE and/or, to inform UEs in RRC_IDLE and UEs in RRC_CONNECTED about a system information change and/or, to inform about an earthquake and tsunami warning system (ETWS) primary notification and/or ETWS secondary notification and/or, to inform about a commercial mobile alert system (CMAS) notification.
- the paging information is provided to upper layers, which in response may initiate RRC connection establishment, e.g. to receive an incoming call.
- S1 paging function supports transmitting of paging requests to all cells of tracking area(s) the UE is registered. Paging requests are transmitted to the relevant eNBs according to mobility information kept in UE's MM context in the serving MME.
- the MME initiates the paging procedure by transmitting a paging message to each eNB with cells belonging to the tracking area(s) in which the UE is registered. Each eNB can contain cells belonging to different tracking areas, whereas each cell can only belong to one tracking area.
- a paging response back to the MME is initiated on NAS layer and is transmitted by the eNB based on NAS-level routing information.
- the E-UTRAN transmits a paging (Paging) message to the UE.
- the MME transmits a paging message to the eNB.
- the eNB transmits a paging response to the MME.
- Mobility management functions are used to keep track of a current location of a UE.
- a tracking area For mobility of the UE, a tracking area (TA) may be defined.
- the location of the UE may be known by a network on a tacking area list granularity.
- the UE may be paged in all cells of the tracking areas in which it is currently registered.
- the UE may be registered in multiple tracking areas. All the tracking areas in the tracking area list to which the UE is registered are served by the same serving MME.
- FIG. 7 shows an example of a tracking update procedure.
- the UE performs a cell (re)selection.
- the UE compares a current tracking area code (TAC) with a previous TAC.
- TAC current tracking area code
- the UE determines whether the current TAC is equal to the previous TAC or not. If the current TAC is equal to the previous TAC, this means that the UE remains at the current tracking area. At this time, the UE does not perform a TA update procedure.
- the UE establishes an RRC connection at step S 73 , and at step S 74 , the UE performs the TA update procedure. Then, at step S 75 , the UE transits to an idle mode.
- D2D Device-to-device
- the D2D connection is a connection between one master UE (M-UE) and one slave UE (S-UE). That is, the D2D connection is a direct connection between UEs.
- the M-UE may control the D2D connection with the S-UE autonomously (i.e. UE autonomous mode) or under full/partial control of an E-UTRAN (i.e. E-UTRAN planned mode).
- One M-UE may configure zero, one or more D2D connections. Different D2D connections may be established with different S-UEs.
- the E-UTRAN may configure following two D2D modes in a cell. Only one D2D mode may be configured for a specific cell, for a specific M-UE, for a specific S-UE, or for a specific D2D connection between one M-UE and one S-UE.
- E-UTRAN planned mode The E-UTRAN (i.e. eNodeB (eNB) serving the M-UE called ‘serving eNB’) is responsible for maintaining D2D connection (in terms of radio resource or quality of service (QoS) over D2D connection).
- the serving eNB has S-UE context for the S-UE connected to the M-UE.
- a mobility management entity (MME) connected to the serving eNB has S-UE context for the S-UE connected to the M-UE.
- MME mobility management entity
- the M-UE is responsible for maintaining D2D connection (in terms of radio resource or QoS over D2D connection).
- the serving eNB has no S-UE context for the S-UE connected to the M-UE.
- the MME connected to the serving eNB may or may not have S-UE context for the S-UE connected to the M-UE.
- the S-UE may or may not have an RRC connection with either the serving eNB or another eNB for both modes.
- a D2D hybrid mode may be defined.
- both the UE autonomous mode and the E-UTRAN planned mode are used for a single D2D connection between one M-UE and one S-UE.
- Which mode between the UE autonomous and the E-UTRAN planned mode is used for the D2D connection may depend on QoS of D2D radio bearers between the M-UE and the S-UE.
- a D2D DRB for voice or video service may be established based on the E-UTRAN planned mode.
- a D2D DRB for data downloading/uploading service may be established based on the UE autonomous mode.
- SPS Semi-persistent scheduling
- the serving eNB may be configured by the serving eNB in the E-UTRAN Planned Mode. Which mode between the UE autonomous and E-UTRAN planned mode is used for the D2D connection may decided by the serving eNB.
- the M-UE may transmit information about this D2D connection establishment to the serving eNB.
- the serving eNB may inform the M-UE which mode should be configured for this D2D connection among the UE autonomous, the E-UTRAN planned, and the hybrid mode.
- the serving eNB is an eNB serving the M-UE. If the eNB serves the S-UE, but it does not serve the M-UE, the eNB is clearly written as ‘S-UE serving eNB’ hereinafter. When the S-UE serving eNB is used to express a certain procedure, ‘M-UE serving eNB’ may be also used.
- FIG. 8 shows an example of a method for updating a tracking area for D2D connection according to an embodiment of the present invention.
- the M-UE transmits a TAU request message to the S-UE.
- the M-UE may transmit the TAU request message due to TAU of the M-UE.
- the TAU request message may include a tracking area code and an identity of the M-UE.
- the S-UE transmits a TAU message to a network.
- the TAU message may include an identity of the M-UE and a D2D connection indication which informs the network that the S-UE is connected to the network via the D2D connection.
- the TAU message may include information on the S-UE, e.g. an identity of the S-UE.
- the TAU message may be transmitted to an MME via the M-UE and the serving eNB, or may be transmitted to the serving eNB directly.
- FIG. 9 shows an example of a method for updating a tracking area for D2D connection and a method for paging for D2D connection in an E-UTRAN planned mode according to an embodiment of the present invention.
- the M-UE and the serving eNB are connected by an RRC connection. If the S-UE is connected to the M-UE, the S-UE may receive a paging via the M-UE connected to the serving eNB. It is assumed that S-UE context is established in the serving eNB and the MME for this paging procedure.
- the M-UE may request the S-UE to perform TAU by transmitting a TAU request message including a tracking area code (TAC) and an M-UE identity to the S-UE.
- TAU tracking area update
- the S-UE may transmit a TAU message to the MME via the M-UE and the serving eNB.
- the TAU message may contain the M-UE identity and a D2D connection indication that is used to inform the MME that the S-UE is connected to the MME via D2D connection.
- the S-UE may transmit the TAU message directly to the serving eNB, independently from D2D connection.
- the M-UE transmits the TAU message to the MME
- the M-UE includes information on the S-UE such as an S-UE identity in the TAU message.
- one TAU procedure is used for tracking area update of both the M-UE and the S-UE.
- the MME When the MME pages the S-UE, e.g. due to data arrival, the MME transmits a paging message including an S-UE identity, the M-UE identity and the D2D connection indication to eNBs. In this case for paging the S-UE, the MME may transmit this paging message to eNBs belonging to the tracking area of the M-UE, based on the received M-UE identity.
- the serving eNB transmits a D2D paging message to the S-UE via the M-UE on a DCCH and a D-DCCH.
- the D2D paging message may include the S-UE identity.
- the S-UE transmits a paging response message to the MME via the M-UE and the serving eNB.
- the D2D indication and the S-UE identity may be included in the paging response message.
- the D2D indication informs the MME that the S-UE is still connected via D2D connection.
- FIG. 10 is a block diagram showing wireless communication system to implement an embodiment of the present invention.
- An eNB 800 may include a processor 810 , a memory 820 and a radio frequency (RF) unit 830 .
- the processor 810 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of the radio interface protocol may be implemented in the processor 810 .
- the memory 820 is operatively coupled with the processor 810 and stores a variety of information to operate the processor 810 .
- the RF unit 830 is operatively coupled with the processor 810 , and transmits and/or receives a radio signal.
- a UE 900 may include a processor 910 , a memory 920 and a RF unit 930 .
- the processor 910 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of the radio interface protocol may be implemented in the processor 910 .
- the memory 920 is operatively coupled with the processor 910 and stores a variety of information to operate the processor 910 .
- the RF unit 930 is operatively coupled with the processor 910 , and transmits and/or receives a radio signal.
- the processors 810 , 910 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device.
- the memories 820 , 920 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device.
- the RF units 830 , 930 may include baseband circuitry to process radio frequency signals.
- the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein.
- the modules can be stored in memories 820 , 920 and executed by processors 810 , 910 .
- the memories 820 , 920 can be implemented within the processors 810 , 910 or external to the processors 810 , 910 in which case those can be communicatively coupled to the processors 810 , 910 via various means as is known in the art.
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Abstract
Description
- 1. Field of the Invention
- The present invention relates to wireless communications, and more particularly, to a method and apparatus for updating a tracking area in a wireless communication system.
- 2. Related Art
- Universal mobile telecommunications system (UMTS) is a 3rd generation (3G) asynchronous mobile communication system operating in wideband code division multiple access (WCDMA) based on European systems, global system for mobile communications (GSM) and general packet radio services (GPRS). A long-term evolution (LTE) of UMTS is under discussion by the 3rd generation partnership project (3GPP) that standardized UMTS.
- With the advent of a ubiquitous environment, there is a rapid increase in a demand for receiving a seamless service anytime anywhere by using equipments. In order to satisfy such a demand, a device-to-device (D2D) connection technique may be introduced in a wireless communication system. The D2D connection technique refers to a technique for transmitting and receiving data not via a base station (BS) since devices such as a user equipment (UE) or the like are connected to each other. That is, one device can communicate with another device via the BS, and can directly communicate with another device not via the BS. By using the D2D connection technique, such an effect as low power consumption, throughput enhancement, etc., can be obtained.
- How a network and UEs should operate for D2D connection should be specified.
- The present invention provides a method and apparatus for updating a tracking area for device-to-device (D2D0 connection in a wireless communication system. The present invention provides a method for tracking area update of a second mobile device due to a tracking area update of a first mobile device when the first mobile device and the second mobile device are connected by D2D connection.
- In an aspect, a method for updating, by a second mobile device, a tracking area for a device-to-device (D2D) connection in a wireless communication system is provided. The method includes receiving a tracking area update (TAU) request message from a first mobile device which has a D2D connection with the second mobile device, and transmitting a TAU message to a network.
- The TAU request message may include a tracking area code and an identity of the first mobile device.
- The TAU message may include an identity of the first mobile device and a D2D connection indication which informs the network that the second mobile device is connected to the network via the D2D connection.
- The TAU message may include information on the second mobile device.
- The information on the second mobile device may be an identity of the second mobile device.
- The TAU message may be transmitted to a mobility management entity (MME) via the first mobile device and a serving eNodeB (eNB).
- The TAU message may be transmitted to a serving eNB directly.
- The method may further include receiving a D2D paging message from the network, and transmitting a paging response message to the network.
- The paging response message may include an identity of the second mobile device and a D2D connection indication which informs the network that the second mobile device is connected to the network via the D2D connection.
- In another aspect, a method for updating, by a first mobile device, a tracking area for a device-to-device (D2D) connection in a wireless communication system is provided. The method includes transmitting a tracking area update (TAU) request message, to a second mobile device which has a D2D connection with the first mobile device, due to TAU of the first mobile device.
- Tracking area update for D2D connection can be supported efficiently.
-
FIG. 1 shows a structure of a wireless communication system. -
FIG. 2 is a diagram showing radio interface protocol architecture for a control plane. -
FIG. 3 is a diagram showing radio interface protocol architecture for a user plane. -
FIG. 4 shows an example of a physical channel structure. -
FIG. 5 shows transmission of a paging channel. -
FIG. 6 shows a paging procedure. -
FIG. 7 shows an example of a tracking update procedure. -
FIG. 8 shows an example of a method for updating a tracking area for D2D connection according to an embodiment of the present invention. -
FIG. 9 shows an example of a method for updating a tracking area for D2D connection and a method for paging for D2D connection in an E-UTRAN planned mode according to an embodiment of the present invention. -
FIG. 10 is a block diagram showing wireless communication system to implement an embodiment of the present invention. - The technology described below can be used in various wireless communication systems such as code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. The CDMA can be implemented with a radio technology such as universal terrestrial radio access (UTRA) or CDMA-2000. The TDMA can be implemented with a radio technology such as global system for mobile communications (GSM)/general packet ratio service (GPRS)/enhanced data rate for GSM evolution (EDGE). The OFDMA can be implemented with a radio technology such as institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, evolved UTRA (E-UTRA), etc. IEEE 802.16m is evolved from IEEE 802.16e, and provides backward compatibility with a system based on the IEEE 802.16e. The UTRA is a part of a universal mobile telecommunication system (UMTS). 3rd generation partnership project (3GPP) long term evolution (LTE) is a part of an evolved UMTS (E-UMTS) using the E-UTRA. The 3GPP LTE uses the OFDMA in a downlink and uses the SC-FDMA in an uplink. LTE-advanced (LTE-A) is an evolution of the LTE.
- For clarity, the following description will focus on LTE-A. However, technical features of the present invention are not limited thereto.
-
FIG. 1 shows a structure of a wireless communication system. - The structure of
FIG. 1 is an example of a network structure of an evolved-UMTS terrestrial radio access network (E-UTRAN). An E-UTRAN system may be a 3GPP LTE/LTE-A system. An evolved-UMTS terrestrial radio access network (E-UTRAN) includes a user equipment (UE) 10 and a base station (BS) 20 which provides a control plane and a user plane to the UE. The user equipment (UE) 10 may be fixed or mobile, and may be referred to as another terminology, such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a wireless device, etc. TheBS 20 is generally a fixed station that communicates with the UE 10 and may be referred to as another terminology, such as an evolved node-B (eNB), a base transceiver system (BTS), an access point, etc. There are one or more cells within the coverage of theBS 20. A single cell is configured to have one of bandwidths selected from 1.25, 2.5, 5, 10, and 20 MHz, etc., and provides downlink or uplink transmission services to several UEs. In this case, different cells can be configured to provide different bandwidths. - Interfaces for transmitting user traffic or control traffic may be used between the
BSs 20. TheBSs 20 are interconnected by means of an X2 interface. TheBSs 20 are connected to an evolved packet core (EPC) by means of an S1 interface. The EPC may consist of a mobility management entity (MME) 30, a serving gateway (S-GW), and a packet data network (PDN) gateway (PDN-GW). The MME has UE access information or UE capability information, and such information may be primarily used in UE mobility management. The S-GW is a gateway of which an endpoint is an E-UTRAN. The PDN-GW is a gateway of which an endpoint is a PDN. TheBSs 20 are connected to theMME 30 by means of an S1-MME, and are connected to the S-GW by means of S1-U. The S1 interface supports a many-to-many relation between theBS 20 and the MME/S-GW 30. - Hereinafter, a downlink (DL) denotes communication from the
BS 20 to theUE 10, and an uplink (UL) denotes communication from theUE 10 to theBS 20. In the DL, a transmitter may be a part of theBS 20, and a receiver may be a part of theUE 10. In the UL, the transmitter may be a part of theUE 10, and the receiver may be a part of theBS 20. -
FIG. 2 is a diagram showing radio interface protocol architecture for a control plane.FIG. 3 is a diagram showing radio interface protocol architecture for a user plane. - Layers of a radio interface protocol between the UE and the E-UTRAN can be classified into a first layer (L1), a second layer (L2), and a third layer (L3) based on the lower three layers of the open system interconnection (OSI) model that is well-known in the communication system. The radio interface protocol between the UE and the E-UTRAN can be horizontally divided into a physical layer, a data link layer, and a network layer, and can be vertically divided into a control plane which is a protocol stack for control signal transmission and a user plane which is a protocol stack for data information transmission. The layers of the radio interface protocol exist in pairs at the UE and the E-UTRAN.
- A physical (PHY) layer belonging to the L1 provides an upper layer with an information transfer service through a physical channel. The PHY layer is connected to a medium access control (MAC) layer which is an upper layer of the PHY layer through a transport channel. Data is transferred between the MAC layer and the PHY layer through the transport channel. The transport channel is classified according to how and with what characteristics data is transmitted through a radio interface. Between different PHY layers, i.e., a PHY layer of a transmitter and a PHY layer of a receiver, data is transferred through the physical channel. The physical channel is modulated using an orthogonal frequency division multiplexing (OFDM) scheme, and utilizes time and frequency as a radio resource.
- The PHY layer uses several physical control channels. A physical downlink control channel (PDCCH) reports to a UE about resource allocation of a paging channel (PCH) and a downlink shared channel (DL-SCH), and hybrid automatic repeat request (HARQ) information related to the DL-SCH. The PDCCH can carry a UL grant for reporting to the UE about resource allocation of UL transmission. A physical control format indicator channel (PCFICH) reports the number of OFDM symbols used for PDCCHs to the UE, and is transmitted in every subframe. A physical hybrid ARQ indicator channel (PHICH) carries an HARQ ACK/NACK signal in response to UL transmission. A physical uplink control channel (PUCCH) carries UL control information such as HARQ ACK/NACK for DL transmission, scheduling request, and CQI. A physical uplink shared channel (PUSCH) carries a UL-uplink shared channel (SCH).
-
FIG. 4 shows an example of a physical channel structure. - A physical channel consists of a plurality of subframes in a time domain and a plurality of subcarriers in a frequency domain. One subframe consists of a plurality of symbols in the time domain. One subframe consists of a plurality of resource blocks (RBs). One RB consists of a plurality of symbols and a plurality of subcarriers. In addition, each subframe can use specific subcarriers of specific symbols of a corresponding subframe for a PDCCH. For example, a first symbol of the subframe can be used for the PDCCH. A transmission time interval (TTI) which is a unit time for data transmission may be equal to a length of one subframe.
- A DL transport channel for transmitting data from the network to the UE includes a broadcast channel (BCH) for transmitting system information, a paging channel (PCH) for transmitting a paging message, a DL-SCH for transmitting user traffic or control signals, etc. The system information carries one or more system information blocks. All system information blocks can be transmitted with the same periodicity. Traffic or control signals of a multimedia broadcast/multicast service (MBMS) are transmitted through a multicast channel (MCH). Meanwhile, a UL transport channel for transmitting data from the UE to the network includes a random access channel (RACH) for transmitting an initial control message, a UL-SCH for transmitting user traffic or control signals, etc.
- A MAC layer belonging to the L2 provides a service to a higher layer, i.e., a radio link control (RLC), through a logical channel. A function of the MAC layer includes mapping between the logical channel and the transport channel and multiplexing/de-multiplexing for a transport block provided to a physical channel on a transport channel of a MAC service data unit (SDU) belonging to the logical channel. The logical channel is located above the transport channel, and is mapped to the transport channel. The logical channel can be divided into a control channel for delivering control region information and a traffic channel for delivering user region information. The logical includes a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), a multicast traffic channel (MTCH), etc.
- An RLC layer belonging to the L2 supports reliable data transmission. A function of the RLC layer includes RLC SDU concatenation, segmentation, and reassembly. To ensure a variety of quality of service (QoS) required by a radio bearer (RB), the RLC layer provides three operation modes, i.e., a transparent mode (TM), an unacknowledged mode (UM), and an acknowledged mode (AM). The AM RLC provides error correction by using an automatic repeat request (ARQ). Meanwhile, a function of the RLC layer can be implemented with a functional block inside the MAC layer. In this case, the RLC layer may not exist.
- A packet data convergence protocol (PDCP) layer belongs to the L2. A function of a packet data convergence protocol (PDCP) layer in the user plane includes user data delivery, header compression, and ciphering. The header compression has a function for decreasing a size of an IP packet header which contains relatively large-sized and unnecessary control information, to support effective transmission in a radio section having a narrow bandwidth. A function of a PDCP layer in the control plane includes control-plane data delivery and ciphering/integrity protection.
- A radio resource control (RRC) layer belonging to the L3 is defined only in the control plane. The RRC layer takes a role of controlling a radio resource between the UE and the network. For this, the UE and the network exchange an RRC message through the RRC layer. The RRC layer serves to control the logical channel, the transport channel, and the physical channel in association with configuration, reconfiguration, and release of RBs. An RB is a logical path provided by the L2 for data delivery between the UE and the network. The configuration of the RB implies a process for specifying a radio protocol layer and channel properties to provide a particular service and for determining respective detailed parameters and operations. The RB can be classified into two types, i.e., a signaling RB (SRB) and a data RB (DRB). The SRB is used as a path for transmitting an RRC message in the control plane. The DRB is used as a path for transmitting user data in the user plane.
- A radio resource state (RRC) state indicates whether an RRC of a user equipment (UE) is logically connected to an RRC of a network. When an RRC connection is established between an RRC layer of the UE and an RRC layer of the network, the UE is in an RRC connected state (RRC_CONNECTED), and otherwise the UE is in an RRC idle state (RRC_IDLE). Since the UE in the RRC_CONNECTED has the RRC connection established with the network, the network can recognize the existence of the UE in the RRC_CONNECTED and can effectively control the UE. Meanwhile, the UE in the RRC_IDLE cannot be recognized by the network, and a core network (CN) manages the UE in unit of a tracking area (TA) which is a larger area than a cell. That is, only the existence of the UE in the RRC_IDLE is recognized in unit of a large area, and the UE must transition to the RRC_CONNECTED to receive a typical mobile communication service such as voice or data communication.
- When the user initially powers on the UE, the UE first searches for a proper cell and then remains in the RRC_IDLE in the cell. When there is a need to establish an RRC connection, the UE which remains in the RRC_IDLE may establish the RRC connection with the RRC of the network through an RRC connection procedure and then may transition to the RRC_CONNECTED. The UE which remains in the RRC_IDLE may need to establish the RRC connection with the network when uplink data transmission is necessary due to a user's call attempt or the like or when there is a need to transmit a response message upon receiving a paging message from the network.
- A non-access stratum (NAS) layer belongs to an upper layer of the RRC layer and serves to perform session management, mobility management, or the like. To manage mobility of the UE in the NAS layer, two states, i.e., an EPS mobility management (EMM)-REGISTERED state and an EMM-DEREGISTERED state, can be defined. The two states are applicable to the UE and the MME. The UE is initially in the EMM-DEREGISTERED. To access the network, the UE may perform a process of registering to the network through an initial attach procedure. If the initial attach procedure is successfully performed, the UE and the MME may be in the EMM-REGISTERED.
- In addition, to manage a signaling connection between the UE and the EPC, two states, i.e., an EPS connection management (ECM)-IDLE state and an ECM-CONNECTED state, can be defined. The two states are applicable to the UE and the MME. When the UE in the ECM-IDLE establishes an RRC connection with the E-UTRAN, the UE may be in the ECM-CONNECTED. When the MME in the ECM-IDLE establishes an S1 connection with the E-UTRAN, the MME may be in the ECM-CONNECTED. When the UE is in the ECM-IDLE, the E-UTRAN does not have information on the context of the UE. Therefore, the UE in the ECM-IDLE can perform a UE-based mobility related procedure such as cell selection or cell reselection without having to receive a command of the network. If a location of the UE in the ECM-IDLE becomes different from a location known to the network, the UE may report the location of the UE to the network through a tracking area update procedure. On the other hand, the mobility of the UE in the ECM-CONNECTED may be managed by the command of the network.
-
FIG. 5 shows transmission of a paging channel. - When there is data to be transmitted by a network to a specific UE or a call delivered to the specific UE, the paging message is used to search and wake up the UE. To transmit the paging message, an E-UTRAN may search for a certain location area in which the UE is currently located, and may transmit the paging message through one cell belonging to the location area in which the UE is located. For this, whenever there is a change in the location area, the UE may report the change to the network, which is called a location area update procedure.
- Referring to
FIG. 5 , a plurality of paging cycles is configured, and one paging cycle may include a plurality of paging occasions. When receiving the paging message, the UE may perform discontinuous reception (DRX) to decrease power consumption. For this, the network may configure a plurality of paging occasions for every time period called a paging cycle, and a specific UE may receive the paging message by monitoring a paging channel only during a specific paging occasion. The UE does not monitor the paging channel in a time other than the specific paging occasion assigned to the UE. One paging occasion may correspond to one TTI. - The system information is necessary information which must be known to the UE to access the network. The UE must entirely receive the system information before the network access, and must always have the latest system information. In addition, since the system information is information which must be known to all UEs in one cell, the BS may periodically transmit the system information.
- The system information may include a master information block (MIB), a scheduling block (SB), a system information block (SIB), etc. The MIB may indicate a physical configuration (e.g., a bandwidth, etc.) of a corresponding cell. The SB may indicate transmission information of SIBs, for example, a transmission period of the SIBs. The SIB is a set of related system information. For example, a certain SIB may include only information of a neighbor cell, and another SIB may include only information of an uplink radio channel used by the UE.
- The BS may transmit the paging message to the UE to report whether there is a change in the system information. In this case, the paging message may include a system information change indicator. If the paging message received according to the paging cycle includes the system information change indicator, the UE may receive the system information transmitted through a BCCH which is a logical channel.
-
FIG. 6 shows a paging procedure. It may be referred to Section 5.3.2 of 3GPP TS 36.331 V10.5.0 (2012-03). The purpose of this procedure is to transmit paging information to a UE in RRC_IDLE and/or, to inform UEs in RRC_IDLE and UEs in RRC_CONNECTED about a system information change and/or, to inform about an earthquake and tsunami warning system (ETWS) primary notification and/or ETWS secondary notification and/or, to inform about a commercial mobile alert system (CMAS) notification. The paging information is provided to upper layers, which in response may initiate RRC connection establishment, e.g. to receive an incoming call. - Further, S1 paging function supports transmitting of paging requests to all cells of tracking area(s) the UE is registered. Paging requests are transmitted to the relevant eNBs according to mobility information kept in UE's MM context in the serving MME. The MME initiates the paging procedure by transmitting a paging message to each eNB with cells belonging to the tracking area(s) in which the UE is registered. Each eNB can contain cells belonging to different tracking areas, whereas each cell can only belong to one tracking area. A paging response back to the MME is initiated on NAS layer and is transmitted by the eNB based on NAS-level routing information.
- Referring to
FIG. 6 , at step S60, the E-UTRAN transmits a paging (Paging) message to the UE. Further, at step S61, the MME transmits a paging message to the eNB. At step S62, the eNB transmits a paging response to the MME. - Mobility management functions are used to keep track of a current location of a UE. For mobility of the UE, a tracking area (TA) may be defined. The location of the UE may be known by a network on a tacking area list granularity. The UE may be paged in all cells of the tracking areas in which it is currently registered. The UE may be registered in multiple tracking areas. All the tracking areas in the tracking area list to which the UE is registered are served by the same serving MME.
-
FIG. 7 shows an example of a tracking update procedure. - At step S70, the UE performs a cell (re)selection. At step S71, after performing the cell (re)selection, the UE compares a current tracking area code (TAC) with a previous TAC.
- At step S72, the UE determines whether the current TAC is equal to the previous TAC or not. If the current TAC is equal to the previous TAC, this means that the UE remains at the current tracking area. At this time, the UE does not perform a TA update procedure.
- If the current TAC is not equal to the previous TAC, this means that the UE enters a new tracking area. To reduce the cell change reporting overhead from the UE to the MME, the UE establishes an RRC connection at step S73, and at step S74, the UE performs the TA update procedure. Then, at step S75, the UE transits to an idle mode.
- Device-to-device (D2D) connection is described below.
- The D2D connection is a connection between one master UE (M-UE) and one slave UE (S-UE). That is, the D2D connection is a direct connection between UEs. The M-UE may control the D2D connection with the S-UE autonomously (i.e. UE autonomous mode) or under full/partial control of an E-UTRAN (i.e. E-UTRAN planned mode). One M-UE may configure zero, one or more D2D connections. Different D2D connections may be established with different S-UEs.
- The E-UTRAN may configure following two D2D modes in a cell. Only one D2D mode may be configured for a specific cell, for a specific M-UE, for a specific S-UE, or for a specific D2D connection between one M-UE and one S-UE.
- 1) E-UTRAN planned mode: The E-UTRAN (i.e. eNodeB (eNB) serving the M-UE called ‘serving eNB’) is responsible for maintaining D2D connection (in terms of radio resource or quality of service (QoS) over D2D connection). The serving eNB has S-UE context for the S-UE connected to the M-UE. A mobility management entity (MME) connected to the serving eNB has S-UE context for the S-UE connected to the M-UE.
- 2) UE autonomous mode: The M-UE is responsible for maintaining D2D connection (in terms of radio resource or QoS over D2D connection). The serving eNB has no S-UE context for the S-UE connected to the M-UE. The MME connected to the serving eNB may or may not have S-UE context for the S-UE connected to the M-UE.
- The S-UE may or may not have an RRC connection with either the serving eNB or another eNB for both modes.
- In addition, a D2D hybrid mode may be defined. In the D2D hybrid mode, both the UE autonomous mode and the E-UTRAN planned mode are used for a single D2D connection between one M-UE and one S-UE. Which mode between the UE autonomous and the E-UTRAN planned mode is used for the D2D connection may depend on QoS of D2D radio bearers between the M-UE and the S-UE. For example, a D2D DRB for voice or video service may be established based on the E-UTRAN planned mode. A D2D DRB for data downloading/uploading service may be established based on the UE autonomous mode. Semi-persistent scheduling (SPS) transmissions over the D2D connection may be configured by the serving eNB in the E-UTRAN Planned Mode. Which mode between the UE autonomous and E-UTRAN planned mode is used for the D2D connection may decided by the serving eNB. When the M-UE makes a D2D connection with the S-UE, the M-UE may transmit information about this D2D connection establishment to the serving eNB. Upon receiving the information from the M-UE, the serving eNB ma inform the M-UE which mode should be configured for this D2D connection among the UE autonomous, the E-UTRAN planned, and the hybrid mode.
- Hereinafter, it is assumed that the serving eNB is an eNB serving the M-UE. If the eNB serves the S-UE, but it does not serve the M-UE, the eNB is clearly written as ‘S-UE serving eNB’ hereinafter. When the S-UE serving eNB is used to express a certain procedure, ‘M-UE serving eNB’ may be also used.
- Followings are identities used for the D2D connection.
-
- M-CRNTI: cell radio network temporary identity (C-RNTI) allocated for the M-UE
- S-CRNTI: C-RNTI allocated for the S-UE
- S-UE identity: The S-UE identity may correspond to one of an international mobile subscriber identity (IMSI), a system architecture evolution (SAE) temporary mobile subscriber identity (S-TMSI), an S-CRNTI, and a new UE identity allocated to the S-UE. The S-UE identity may be allocated by the M-UE, the M-UE serving eNB, the S-UE serving eNB, or an EPC node such as MME/home location register (HLR).
- Followings are channels used for the D2D connection.
-
- D2D downlink: a direction from the M-UE to the S-UE
- D2D uplink: a direction from the S-UE to the M-UE
- D-BCCH: D2D downlink broadcast control channel used over the D2D connection. The M-UE broadcasts the D-BCCH to one or more S-UEs, e.g. for delivery of D2D system information or helping an S-UE detect another UE for the D2D connection.
- D-RACH: D2D uplink random access channel used over the D2D connection. The M-UE may allocate radio resources for the D-RACH. The S-UE may know configuration of the D-RACH by receiving information on the D-BCCH. The S-UE may transmit a preamble or message over the D-RACH to the M-UE, in order to make a connection with the M-UE or in order to transmit data to the M-UE.
- D-CCCH: D2D uplink/downlink common control channel used over the D2D connection.
- D-DCCH: D2D uplink/downlink dedicated control channel used over the D2D connection.
- D2D RB: radio bearer which is established over the D2D connection between the M-UE and the S-UE. A DRB and a SRB may be provided for D2D user data and D2D control info, respectively.
-
FIG. 8 shows an example of a method for updating a tracking area for D2D connection according to an embodiment of the present invention. - At step S100, the M-UE transmits a TAU request message to the S-UE. The M-UE may transmit the TAU request message due to TAU of the M-UE. The TAU request message may include a tracking area code and an identity of the M-UE.
- At step S110, the S-UE transmits a TAU message to a network. The TAU message may include an identity of the M-UE and a D2D connection indication which informs the network that the S-UE is connected to the network via the D2D connection. In addition, the TAU message may include information on the S-UE, e.g. an identity of the S-UE. The TAU message may be transmitted to an MME via the M-UE and the serving eNB, or may be transmitted to the serving eNB directly.
-
FIG. 9 shows an example of a method for updating a tracking area for D2D connection and a method for paging for D2D connection in an E-UTRAN planned mode according to an embodiment of the present invention. - 1. It is assumed that the M-UE and the serving eNB are connected by an RRC connection. If the S-UE is connected to the M-UE, the S-UE may receive a paging via the M-UE connected to the serving eNB. It is assumed that S-UE context is established in the serving eNB and the MME for this paging procedure.
- 2. When tracking area update (TAU) is needed, e.g. due to TAU of the M-UE, and if D2D connection is in the E-UTRAN planned mode, the M-UE may request the S-UE to perform TAU by transmitting a TAU request message including a tracking area code (TAC) and an M-UE identity to the S-UE.
- 3. When TAU is needed, e.g. upon reception of the TAU request message from the M-UE, the S-UE may transmit a TAU message to the MME via the M-UE and the serving eNB. The TAU message may contain the M-UE identity and a D2D connection indication that is used to inform the MME that the S-UE is connected to the MME via D2D connection.
- Alternatively, the S-UE may transmit the TAU message directly to the serving eNB, independently from D2D connection. Or, when the M-UE transmits the TAU message to the MME, the M-UE includes information on the S-UE such as an S-UE identity in the TAU message. In this case, one TAU procedure is used for tracking area update of both the M-UE and the S-UE.
- 4. When the MME pages the S-UE, e.g. due to data arrival, the MME transmits a paging message including an S-UE identity, the M-UE identity and the D2D connection indication to eNBs. In this case for paging the S-UE, the MME may transmit this paging message to eNBs belonging to the tracking area of the M-UE, based on the received M-UE identity.
- 5. If the S-UE is connected to the M-UE via D2D connection, the serving eNB transmits a D2D paging message to the S-UE via the M-UE on a DCCH and a D-DCCH. The D2D paging message may include the S-UE identity.
- 6. In response to the paging message, the S-UE transmits a paging response message to the MME via the M-UE and the serving eNB. The D2D indication and the S-UE identity may be included in the paging response message. The D2D indication informs the MME that the S-UE is still connected via D2D connection.
-
FIG. 10 is a block diagram showing wireless communication system to implement an embodiment of the present invention. - An
eNB 800 may include aprocessor 810, amemory 820 and a radio frequency (RF)unit 830. Theprocessor 810 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of the radio interface protocol may be implemented in theprocessor 810. Thememory 820 is operatively coupled with theprocessor 810 and stores a variety of information to operate theprocessor 810. TheRF unit 830 is operatively coupled with theprocessor 810, and transmits and/or receives a radio signal. - A
UE 900 may include aprocessor 910, amemory 920 and aRF unit 930. Theprocessor 910 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of the radio interface protocol may be implemented in theprocessor 910. Thememory 920 is operatively coupled with theprocessor 910 and stores a variety of information to operate theprocessor 910. TheRF unit 930 is operatively coupled with theprocessor 910, and transmits and/or receives a radio signal. - The
processors memories RF units memories processors memories processors processors processors - In view of the exemplary systems described herein, methodologies that may be implemented in accordance with the disclosed subject matter have been described with reference to several flow diagrams. While for purposed of simplicity, the methodologies are shown and described as a series of steps or blocks, it is to be understood and appreciated that the claimed subject matter is not limited by the order of the steps or blocks, as some steps may occur in different orders or concurrently with other steps from what is depicted and described herein. Moreover, one skilled in the art would understand that the steps illustrated in the flow diagram are not exclusive and other steps may be included or one or more of the steps in the example flow diagram may be deleted without affecting the scope and spirit of the present disclosure.
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140362752A1 (en) * | 2013-06-07 | 2014-12-11 | Satish Chandra Jha | Enhanced node b and methods for providing system information updates to user equipment with extended paging cycles |
US20150117295A1 (en) * | 2013-10-30 | 2015-04-30 | Electronics And Telecommunications Research Institute | Method and apparatus for device-to-device communication |
US20150148049A1 (en) * | 2013-11-25 | 2015-05-28 | Motorola Mobility Llc | Method and apparatus for allocating resources for device-to-device communication |
US20150208384A1 (en) * | 2014-01-21 | 2015-07-23 | Qualcomm Incorporated | Device-to-device discovery signaling for radio resource allocation |
US20150281940A1 (en) * | 2012-09-28 | 2015-10-01 | Nokia Siemens Networks Oy | Location registration for a device-to-device d2d communication user equipment being in idle mode mobility management |
US9717074B2 (en) | 2010-04-01 | 2017-07-25 | Hon Hai Precision Industry Co., Ltd. | Relay user equipment device and status announcement method thereof |
US10225874B2 (en) | 2014-03-18 | 2019-03-05 | China Academy Of Telecommunications Technology | Resource allocation method and equipment for device-to-device signal transmission |
US10314008B2 (en) * | 2016-11-04 | 2019-06-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for managing paging in a wireless communication network |
US10368340B2 (en) | 2010-04-01 | 2019-07-30 | Hon Hai Precision Industry Co., Ltd. | Network service exposure method and apparatus utilizing the same |
US10470160B2 (en) * | 2015-12-10 | 2019-11-05 | Samsung Electronics Co., Ltd. | Method and device for transmitting/receiving signal between linked devices |
US11184874B2 (en) * | 2017-06-15 | 2021-11-23 | Lg Electronics Inc. | Methods and devices for transmitting and receiving paging channel in wireless communication system |
US20220075054A1 (en) * | 2020-09-04 | 2022-03-10 | Qualcomm Incorporated | Target detection using multiple radar waveforms |
US11700543B2 (en) | 2018-09-25 | 2023-07-11 | Fujitsu Limited | Method and apparatus for transmitting data and communication system |
Families Citing this family (108)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013181421A2 (en) * | 2012-05-31 | 2013-12-05 | Interdigital Patent Holdings, Inc. | Method and apparatus for device-to-device (d2d) mobility in wireless systems |
US9648638B2 (en) | 2012-07-20 | 2017-05-09 | Lg Electronics Inc. | Method and apparatus for transmitting device-to-device related information in wireless communication system |
US10623938B2 (en) * | 2012-09-06 | 2020-04-14 | Qualcomm Incorporated | Methods and apparatus for paging based peer discovery |
US10070363B2 (en) * | 2012-09-27 | 2018-09-04 | Kyocera Corporation | Mobile communication system having radio terminal(s) that communicate directly with other radio terminal(s) |
CN109890055B (en) * | 2012-10-10 | 2021-09-14 | 安华高科技股份有限公司 | Method and apparatus for managing handover |
US20150282243A1 (en) * | 2012-11-09 | 2015-10-01 | Nokia Technologies Oy | Methods and apparatuses of radio resource control connection recovery |
KR20150065874A (en) | 2012-11-09 | 2015-06-15 | 후지쯔 가부시끼가이샤 | Method for switching device-to-device communication, base station, and communication system |
US9407302B2 (en) * | 2012-12-03 | 2016-08-02 | Intel Corporation | Communication device, mobile terminal, method for requesting information and method for providing information |
JP5944592B2 (en) * | 2012-12-10 | 2016-07-05 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Wireless device, radio network node, and method for discontinuous reception in device-to-device communication |
US9363781B2 (en) * | 2013-04-01 | 2016-06-07 | Samsung Electronics Co., Ltd. | Location registration method and apparatus of terminal in mobile communication system |
KR102039908B1 (en) * | 2013-04-01 | 2019-11-04 | 삼성전자주식회사 | Method and apparatus for state transition of device-to-device communications |
AU2013389390B2 (en) | 2013-05-16 | 2017-06-08 | Telefonaktiebolaget L M Ericsson (Publ) | A wireless device, network nodes and methods therein for handling a device-to-device (D2D) communication during handover in a wireless telecommunications network |
JP6239270B2 (en) | 2013-05-29 | 2017-11-29 | 京セラ株式会社 | Base station, user terminal and processor |
KR102115425B1 (en) * | 2013-07-02 | 2020-06-05 | 삼성전자주식회사 | Apparatus and method for changing between default path and direct path in wireless communication system |
KR102122674B1 (en) * | 2013-07-03 | 2020-06-15 | 인터디지탈 패튼 홀딩스, 인크 | Epc enhancements for proximity services |
US9374151B2 (en) | 2013-08-08 | 2016-06-21 | Intel IP Corporation | Coverage extension level for coverage limited device |
EP2846567A1 (en) * | 2013-08-19 | 2015-03-11 | Innovative Sonic Corporation | Method and apparatus for device to device discovery in a wireless communication system |
US10117224B2 (en) * | 2013-09-20 | 2018-10-30 | Qualcomm Incorporated | MAC subheader for D2D broadcast communication for public safety |
US9572171B2 (en) | 2013-10-31 | 2017-02-14 | Intel IP Corporation | Systems, methods, and devices for efficient device-to-device channel contention |
EP3039931B1 (en) * | 2013-10-31 | 2018-10-17 | Sony Corporation | Communications system, communications device and method of communicating |
US10383129B2 (en) * | 2013-10-31 | 2019-08-13 | Sony Corporation | Communication system, communications device, infrastructure equipment and method of allocating resources for performing device-to-device(D2D) communication |
WO2015096845A1 (en) * | 2013-12-23 | 2015-07-02 | Huawei Technologies Duesseldorf Gmbh | A method for managing communications between a first mobile terminal and a second mobile terminal |
CN104768206B (en) * | 2014-01-02 | 2019-01-04 | 电信科学技术研究院 | The data transmission method and device of device-to-device communication |
US10652725B2 (en) * | 2014-01-24 | 2020-05-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Obtaining and using D2D related information to perform mobility operation(s) |
US10051677B2 (en) * | 2014-01-24 | 2018-08-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Providing, obtaining, and using D2D-related capability of a network node |
JP6464179B2 (en) * | 2014-03-06 | 2019-02-06 | エルジー エレクトロニクス インコーポレイティド | Method and apparatus for performing handover in a wireless communication system |
US9655163B2 (en) | 2014-03-11 | 2017-05-16 | Innovative Sonic Corporation | Method and apparatus for implementing a device-to-device (D2D) service in a wireless communication system |
US9769644B2 (en) * | 2014-03-14 | 2017-09-19 | Intel IP Corporation | Systems, methods, and devices for device-to-device communication mode selection |
CN104936164B (en) * | 2014-03-17 | 2019-01-25 | 电信科学技术研究院 | It indicates D2D relevant information and determines that D2D sends the method and device of resource |
JP6533529B2 (en) | 2014-03-18 | 2019-06-19 | シャープ株式会社 | Device-to-device communication apparatus and method |
GB2524298A (en) * | 2014-03-19 | 2015-09-23 | Nec Corp | Device-to-device radio resource management |
HUE042226T2 (en) | 2014-03-21 | 2019-06-28 | Sun Patent Trust | Scheduling request procedure for d2d communication |
CN106105059B (en) * | 2014-03-21 | 2019-05-03 | Lg电子株式会社 | The method and apparatus of instruction D2D for information about in a wireless communication system |
WO2015139773A1 (en) * | 2014-03-21 | 2015-09-24 | Nokia Solutions And Networks Oy | Resource release for proximity-based communications |
US9717092B2 (en) * | 2014-04-03 | 2017-07-25 | Innovative Sonic Corporation | Method and apparatus for allocating resources for device-to-device (D2D) communication in a wireless communication system |
US10004086B2 (en) * | 2014-04-10 | 2018-06-19 | Innovative Sonic Corporation | Method and apparatus for reporting buffer status for device to device communication in a wireless communication system |
KR101946847B1 (en) | 2014-04-23 | 2019-02-12 | 엘지전자 주식회사 | Device-to-device (d2d) operation method carried out by terminal in rrc connection state in wireless communication system, and terminal using the method |
KR102255919B1 (en) | 2014-04-29 | 2021-05-25 | 엘지전자 주식회사 | Method and apparatus for supporting full-duplex communication operation in wireless communication system supporting full-duplex communication |
WO2015167681A1 (en) | 2014-05-01 | 2015-11-05 | Sharp Laboratories Of America, Inc. | Device-to-device communications apparatus and methods |
US20170079083A1 (en) * | 2014-05-05 | 2017-03-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and Devices for Unidirectional Device-to-Device Communication |
CN105101154B (en) * | 2014-05-07 | 2019-12-03 | 中兴通讯股份有限公司 | A kind of device-to-device authorization message configuration method, device and network element device |
US10506604B2 (en) | 2014-05-08 | 2019-12-10 | Sharp Kabushiki Kaisha | Device to-device communications apparatus and methods |
US9661653B2 (en) | 2014-05-08 | 2017-05-23 | Intel IP Corporation | Device to-device (D2D) communications |
WO2015168937A1 (en) | 2014-05-09 | 2015-11-12 | 富士通株式会社 | Resource selection device and communication system |
CN105101046B (en) * | 2014-05-14 | 2020-11-03 | 索尼公司 | Electronic device and wireless communication method in wireless communication system |
US10412602B2 (en) * | 2014-06-20 | 2019-09-10 | Sony Corporation | Apparatus and method |
US10681745B2 (en) | 2014-06-26 | 2020-06-09 | Nokia Solutions And Networks Oy | Radio resource allocation for proximity services |
US10433284B2 (en) * | 2014-07-15 | 2019-10-01 | Qualcomm Incorporated | Bearer management for prose direct discovery |
WO2016015285A1 (en) * | 2014-07-31 | 2016-02-04 | 富士通株式会社 | Information configuration apparatus, communication apparatus and communication system |
US11452152B2 (en) | 2014-07-31 | 2022-09-20 | Microsoft Technology Licensing, Llc | Radio resource control for D2D communication |
US9883426B2 (en) * | 2014-07-31 | 2018-01-30 | Microsoft Technology Licensing, Llc. | Enhanced reporting for handover in device-to-device communication |
US11076417B2 (en) | 2014-07-31 | 2021-07-27 | Microsoft Technology Licensing, Llc | Downlink transmission scheduling for user equipments enabling device-to-device communications |
JP5886907B1 (en) * | 2014-08-07 | 2016-03-16 | 株式会社Nttドコモ | User apparatus and resource control method |
CN105338590B (en) * | 2014-08-08 | 2019-11-29 | 中兴通讯股份有限公司 | Support the reporting of adjacent service ability information, processing method and processing device |
US9661684B2 (en) | 2014-08-11 | 2017-05-23 | Telefonaktiebolaget L M Ericsson (Publ) | Method of sharing a UE receiver between D2D and cellular operations based on activity |
US9854409B2 (en) | 2014-09-18 | 2017-12-26 | Qualcomm Incorporated | Using push notifications to trigger an announcing UE to update location info in LTE direct |
KR101896393B1 (en) * | 2014-10-07 | 2018-09-10 | 닛본 덴끼 가부시끼가이샤 | Wireless terminal, control device, and methods for both |
CN106797401B (en) * | 2014-10-31 | 2020-03-27 | Lg电子株式会社 | Method for avoiding transmission of MAC PDU with padding only in D2D communication system and apparatus therefor |
CN104363658B (en) * | 2014-11-06 | 2019-03-22 | 东莞宇龙通信科技有限公司 | The management method of straight-through resource and the management system of straight-through resource |
US9736875B2 (en) * | 2014-11-19 | 2017-08-15 | Qualcomm Incorporated | Device to-device radio coexistence management |
CN105722200B (en) * | 2014-12-02 | 2020-08-11 | 索尼公司 | Electronic device and wireless communication method in wireless communication system |
WO2016159007A1 (en) * | 2015-03-31 | 2016-10-06 | 株式会社Nttドコモ | User device, and control information transmitting method |
US10356656B2 (en) | 2015-04-07 | 2019-07-16 | Lg Electronics Inc. | Method and apparatus for performing buffer status reporting procedure for relaying in wireless communication system |
US9992815B2 (en) * | 2015-04-09 | 2018-06-05 | Industrial Technology Research Institute | Method of performing handover procedure, making handover decision for device-to-device communications and control node thereof |
CN106162777B (en) * | 2015-04-09 | 2021-03-26 | 中兴通讯股份有限公司 | Relay node switching method and system |
CN106304036B (en) | 2015-05-19 | 2019-11-19 | 华为技术有限公司 | It is a kind of that the method and apparatus of junction traffic are provided |
US20170006622A1 (en) * | 2015-07-02 | 2017-01-05 | Qualcomm Incorporated | Techniques for reporting buffer status in wireless communications |
CN113923645A (en) * | 2015-07-15 | 2022-01-11 | 日本电气株式会社 | Wireless terminal and method of wireless terminal |
RU2684425C1 (en) * | 2015-08-14 | 2019-04-09 | Телефонактиеболагет Лм Эрикссон (Пабл) | Signaling in idc problems |
US20180213426A1 (en) * | 2015-08-21 | 2018-07-26 | Samsung Electronics Co., Ltd. | Method for reporting latency of packet transmission in communication network |
US10749635B2 (en) * | 2016-02-26 | 2020-08-18 | Apple Inc. | Random-access and scheduling-request in new radio-things sidelink |
EP3404944B1 (en) * | 2016-03-22 | 2022-04-27 | Huawei Technologies Co., Ltd. | D2d communication method and device |
US10887933B2 (en) | 2016-03-28 | 2021-01-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device-to-device communication method, terminal device, and network device |
CN107241678B (en) * | 2016-03-28 | 2019-08-06 | 电信科学技术研究院 | A kind of method and apparatus carrying out communication configuration |
CN107241786B (en) * | 2016-03-28 | 2020-10-02 | 电信科学技术研究院 | Method and equipment for carrying out communication configuration |
EP3449679B1 (en) * | 2016-04-28 | 2020-06-03 | Telefonaktiebolaget LM Ericsson (PUBL) | Handling tracking area information in a wireless communication network |
CN107371263B (en) * | 2016-05-12 | 2022-08-19 | 中兴通讯股份有限公司 | Method and device for scheduling uplink resources |
CN107371193B (en) * | 2016-05-13 | 2023-04-25 | 中兴通讯股份有限公司 | Bandwidth-limited device and communication method thereof |
EP3255950A1 (en) * | 2016-06-06 | 2017-12-13 | ASUSTek Computer Inc. | Method and apparatus for resource allocation on d2d relay channel in a wireless communication system |
CN108307528B (en) * | 2016-08-11 | 2021-05-25 | 中兴通讯股份有限公司 | Information transmission method, device and system |
WO2018059701A1 (en) * | 2016-09-29 | 2018-04-05 | Huawei Technologies Duesseldorf Gmbh | Sidelink-assisted handover in cellular networks |
CN110089168B (en) * | 2016-12-19 | 2021-06-08 | 华为技术有限公司 | Paging method and device |
CN108347725B (en) * | 2017-01-25 | 2021-02-09 | 华为技术有限公司 | Communication method and apparatus |
CN110249670B (en) * | 2017-02-06 | 2022-04-26 | Lg 电子株式会社 | Method of performing paging-related operation of second UE having connection with first UE in wireless communication system and apparatus therefor |
CN108401246A (en) * | 2017-02-08 | 2018-08-14 | 财团法人工业技术研究院 | Connection management method for mobile device group |
WO2018170858A1 (en) * | 2017-03-23 | 2018-09-27 | Oppo广东移动通信有限公司 | Paging method and paging apparatus |
BR112020005862A2 (en) | 2017-09-28 | 2020-09-29 | Sony Corporation | user equipment and base station. |
GB2566965A (en) | 2017-09-28 | 2019-04-03 | Samsung Electronics Co Ltd | Improvements in and relating to connection setup |
CN110393022A (en) * | 2018-02-22 | 2019-10-29 | 联发科技(新加坡)私人有限公司 | The trace regions of intersystem handover update process and improve in mobile communication |
CN109041113B (en) * | 2018-07-17 | 2021-03-30 | 北京邮电大学 | Virtual UE transmission task distribution device and method for future 5G network |
US11706668B2 (en) | 2018-08-08 | 2023-07-18 | Nokia Technologies Oy | Signalling improvement in conditional handover |
US20200053835A1 (en) * | 2018-08-08 | 2020-02-13 | Idac Holdings, Inc. | Uu interface enhancement for nr v2x |
WO2020038824A1 (en) * | 2018-08-20 | 2020-02-27 | Sony Corporation | Communications with non-terrestrial networks |
CN110891314B (en) * | 2018-09-11 | 2022-08-19 | 华为技术有限公司 | Communication method, resource allocation method and device |
EP3629660A1 (en) * | 2018-09-26 | 2020-04-01 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Method and system for sharing / managing resources |
WO2020069668A1 (en) * | 2018-10-02 | 2020-04-09 | FG Innovation Company Limited | Multi-rat sidelink communications |
WO2020140290A1 (en) * | 2019-01-04 | 2020-07-09 | 株式会社Ntt都科摩 | Wireless communication method and device |
DE102020201827A1 (en) | 2019-02-13 | 2020-08-20 | Apple Inc. | V2X NETWORK SUPPORTED SIDE-LINK CONFIGURATION AND DATA TRANSFER |
CN116056170A (en) * | 2019-02-13 | 2023-05-02 | 苹果公司 | V2X network auxiliary side link configuration and data transmission method and device |
CN112738876B (en) * | 2019-10-14 | 2023-06-30 | 北京小米移动软件有限公司 | Terminal network synchronization method and device |
US11558839B2 (en) * | 2019-11-19 | 2023-01-17 | GM Global Technology Operations LLC | Determination of local time at vehicle ignition |
US11751279B2 (en) * | 2020-01-07 | 2023-09-05 | Mediatek Inc. | Apparatuses and methods for multi-radio access technology (RAT) coordination |
CN113260025B (en) * | 2020-02-10 | 2023-04-14 | 大唐移动通信设备有限公司 | Discontinuous reception processing method, terminal, device and medium |
CN111357306B (en) * | 2020-02-21 | 2023-10-10 | 北京小米移动软件有限公司 | Communication processing method, device and computer storage medium |
CN113676960B (en) * | 2020-05-13 | 2023-04-25 | 维沃移动通信有限公司 | Switching method and device, terminal equipment and network equipment |
EP4210432A4 (en) * | 2020-10-06 | 2024-03-06 | Kyocera Corp | Communication control method |
EP4238386A1 (en) * | 2020-10-29 | 2023-09-06 | Sony Group Corporation | Methods for signalling user equipment assistance information, related wireless device, and related network node |
KR20230133325A (en) * | 2021-01-14 | 2023-09-19 | 엘지전자 주식회사 | Method and device for performing SL DRX based on terminal mobility in NR V2X |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120100803A1 (en) * | 2010-10-20 | 2012-04-26 | Nokia Corporation | Delayed and conditional transport switch |
US20120214493A1 (en) * | 2009-10-27 | 2012-08-23 | Samsung Electronics Co. Ltd. | Communication method in a mobile communication system and a system thereof |
US20130109301A1 (en) * | 2011-11-02 | 2013-05-02 | Renesas Mobile Corporation | D2D Discovery Process |
US20140036873A1 (en) * | 2011-04-28 | 2014-02-06 | Panasonic Corporation | Communication system, mobile terminal, router, and mobility management entity |
US20140120907A1 (en) * | 2009-10-23 | 2014-05-01 | Nokia Siemens Networks Oy | Systems, methods, and apparatuses for facilitating device-to-device connection establishment |
Family Cites Families (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002209028A (en) | 2001-01-10 | 2002-07-26 | Mitsubishi Electric Corp | Charging method in adhoc network |
AU2003304219A1 (en) * | 2003-06-18 | 2005-01-04 | Utstarcom (China) Co. Ltd. | Method for implementing diffserv in the wireless access network of the universal mobile telecommunication system |
US20060084444A1 (en) * | 2004-10-20 | 2006-04-20 | Nokia Corporation | System and method utilizing a cognitive transceiver for ad hoc networking |
GB0608753D0 (en) | 2006-05-03 | 2006-06-14 | Nokia Corp | User equipment |
EP2077679B1 (en) | 2006-10-23 | 2016-08-24 | Sharp Kabushiki Kaisha | Radio communication system, base station device and mobile station device |
JP4545768B2 (en) * | 2007-02-28 | 2010-09-15 | 株式会社エヌ・ティ・ティ・ドコモ | Radio control signal generation method, radio base station apparatus, and mobile station |
US8504046B2 (en) | 2008-01-03 | 2013-08-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Fast radio link recovery after handover failure |
WO2010006649A1 (en) | 2008-07-17 | 2010-01-21 | Nokia Siemens Networks Oy | Device-to-device communications in cellular system |
US20100040028A1 (en) * | 2008-08-13 | 2010-02-18 | Qualcomm Incorporated | Method and apparatus for mitigation of procedures in a wireless communication system |
US9320067B2 (en) * | 2008-11-24 | 2016-04-19 | Qualcomm Incorporated | Configuration of user equipment for peer-to-peer communication |
CN101772199A (en) * | 2008-11-24 | 2010-07-07 | 华为终端有限公司 | Method and device for establishing D2D network |
US8493887B2 (en) | 2008-12-30 | 2013-07-23 | Qualcomm Incorporated | Centralized control of peer discovery pilot transmission |
US8107883B2 (en) | 2009-03-23 | 2012-01-31 | Nokia Corporation | Apparatus and method for interference avoidance in mixed device-to-device and cellular environment |
US9351340B2 (en) * | 2009-04-08 | 2016-05-24 | Nokia Technologies Oy | Apparatus and method for mode selection for device-to-device communications |
US9357568B2 (en) * | 2009-06-16 | 2016-05-31 | Futurewei Technologies, Inc. | System and method for adapting an application source rate to a load condition |
CN101932019B (en) * | 2009-06-19 | 2015-06-03 | 中兴通讯股份有限公司 | Method, terminal and network system for reporting buffer status report |
EP2484169B1 (en) * | 2009-09-28 | 2014-05-14 | Nokia Corp. | Random access process reusing for d2d probing in cellular-aided d2d networks |
KR101538523B1 (en) | 2009-10-05 | 2015-07-22 | 삼성전자주식회사 | Regional access control method of terminal performing M2M communication in wireless communication system |
EP2317815A1 (en) * | 2009-11-02 | 2011-05-04 | Panasonic Corporation | Power-limit reporting in a communication system using carrier aggregation |
WO2011069287A1 (en) * | 2009-12-08 | 2011-06-16 | 华为技术有限公司 | Method and device for user equipment management |
KR101454524B1 (en) * | 2009-12-22 | 2014-11-03 | 후지쯔 가부시끼가이샤 | Quality of service control in a relay |
JP5478737B2 (en) * | 2010-01-08 | 2014-04-23 | アルカテル−ルーセント | Method and device for group-based mobility optimization in machine type communication |
WO2011109027A1 (en) * | 2010-03-05 | 2011-09-09 | Nokia Corporation | Handover of direct peer to peer communication |
EP2369890A1 (en) | 2010-03-26 | 2011-09-28 | Panasonic Corporation | Connection peak avoidance for machine-type-communication (MTC) devices |
KR101878000B1 (en) * | 2010-04-02 | 2018-07-12 | 인터디지탈 패튼 홀딩스, 인크 | Method and apparatus for supporting communication via a relay node |
EP2553975B1 (en) * | 2010-04-02 | 2018-08-15 | InterDigital Patent Holdings, Inc. | Group procedures for machine type communications devices |
US8588803B2 (en) | 2010-06-18 | 2013-11-19 | Nokia Corporation | Method and apparatus for resource scheduling for network controlled D2D communications |
CN102291771B (en) | 2010-06-21 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of method and system realizing buffer region state reporting |
WO2011163088A1 (en) | 2010-06-23 | 2011-12-29 | Qualcomm Incorporated | Event-triggered peer discovery |
US8509105B2 (en) * | 2010-06-23 | 2013-08-13 | Nokia Corporation | Method and apparatus for device-to-device network coordination |
US9119146B2 (en) | 2010-06-30 | 2015-08-25 | Nokia Solutions And Networks Oy | Scheduling of user terminals in communication network |
US8842546B2 (en) | 2010-07-22 | 2014-09-23 | Mediatek Inc. | Method for wireless communication in a device with co-existence radio |
US20120044865A1 (en) * | 2010-08-20 | 2012-02-23 | Industrial Technology Research Institute | Apparatus And Method For Coupling An M2M Device To A Wireless Network |
US20130170387A1 (en) | 2010-09-14 | 2013-07-04 | Nokia Corporation | Interference Measurement and Reporting for Device-to-Device Communications in a Communication System |
US8548483B2 (en) | 2010-10-04 | 2013-10-01 | Nokia Corporation | Feedback mapping for D2D control signals |
CN103250363B (en) | 2010-10-04 | 2016-05-11 | 三星电子株式会社 | For the treatment of the method and apparatus of mutual interference in the equipment in wireless communications environment |
KR101588712B1 (en) | 2010-11-16 | 2016-01-26 | 삼성전자주식회사 | Method and apparatus of controlling inter cell interference based on cooperation of intra cell terminals |
JP2012119827A (en) * | 2010-11-30 | 2012-06-21 | Ntt Docomo Inc | Mobile communication method, radio base station, and mobile station |
EP2647176A4 (en) | 2010-12-03 | 2014-06-11 | Device to device cluster enhancement to support data transmission from/to multiple devices | |
EP2464180A1 (en) | 2010-12-07 | 2012-06-13 | LG Electronics Inc. | Apparatus and method for updating a location in a wireless access system |
EP2651047B1 (en) | 2010-12-07 | 2017-08-30 | LG Electronics Inc. | Method and device for communication between terminals in wireless communication system |
KR101228220B1 (en) * | 2010-12-13 | 2013-01-31 | 경희대학교 산학협력단 | Method for controlling communication mode of mobile terminals based on distance between mobile terminals |
US8364172B2 (en) | 2010-12-15 | 2013-01-29 | Google Inc. | Peer-to-peer location service |
WO2012087190A1 (en) | 2010-12-20 | 2012-06-28 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and user equipments for providing information about a connection state |
KR20120074254A (en) * | 2010-12-27 | 2012-07-05 | 한국전자통신연구원 | Method for connection configuration and scheduling of device to device link in direct communication between user equipments and relaying by user equipment |
US9826404B2 (en) * | 2011-01-11 | 2017-11-21 | Qualcomm Incorporated | System and method for peer-to-peer authorization via non-access stratum procedures |
CN102612013A (en) | 2011-01-20 | 2012-07-25 | 华为终端有限公司 | Group-based position managing method and equipment of machine type communication (MTC) equipment |
JP5318151B2 (en) | 2011-04-22 | 2013-10-16 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication method, radio base station, and mobile station |
US20140198655A1 (en) * | 2011-06-01 | 2014-07-17 | Ntt Docomo, Inc. | Enhanced local access in mobile communications using small node devices |
WO2013025160A1 (en) | 2011-08-15 | 2013-02-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and nodes for handling measurements in a wireless communication system |
US8705398B2 (en) | 2011-09-12 | 2014-04-22 | Broadcom Corporation | Mechanism for signaling buffer status information |
GB2494633B (en) * | 2011-09-12 | 2016-03-09 | Broadcom Corp | Methods and apparatus for signalling bufffer status information |
CN103139930B (en) | 2011-11-22 | 2015-07-08 | 华为技术有限公司 | Connection establishment method and user devices |
KR20130065193A (en) * | 2011-12-09 | 2013-06-19 | 한국전자통신연구원 | Method of device-to-device communication based on cellular communication system |
KR102006179B1 (en) * | 2011-12-15 | 2019-08-02 | 삼성전자주식회사 | Method and apparatus for assigning connection identifiers of device to device communications |
CN102547984B (en) * | 2012-02-23 | 2015-03-11 | 华为技术有限公司 | Method and device for paging in device-to-device communication |
KR20130109781A (en) * | 2012-03-28 | 2013-10-08 | 한국전자통신연구원 | Method of allocating radio resources for device-to-device communication in cellular telecommunication system |
KR102036778B1 (en) | 2012-04-20 | 2019-10-25 | 엘지전자 주식회사 | Method and device for transmitting d2d data in wireless communication system |
EP2849357B1 (en) * | 2012-05-09 | 2021-09-08 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system |
WO2013170169A2 (en) * | 2012-05-10 | 2013-11-14 | Interdigital Patent Holdings, Inc. | Systems and methods for directional mesh networks with joint backhaul and access link design |
US9532245B2 (en) * | 2012-05-10 | 2016-12-27 | Broadcom Corporation | Enhancement of in-device interference |
EP2853052A1 (en) | 2012-05-23 | 2015-04-01 | Kyocera Corporation | Acknowledgment messaging over reference signals |
WO2013181369A1 (en) | 2012-05-31 | 2013-12-05 | Interdigital Patent Holdings, Inc. | Measurements and interference avoidance for device-to-device links |
TWI620459B (en) * | 2012-05-31 | 2018-04-01 | 內數位專利控股公司 | Methods to enable scheduling and control of direct link communication in cellular communication systems |
WO2013183731A1 (en) | 2012-06-06 | 2013-12-12 | 京セラ株式会社 | Communication control method, base station, user terminal, processor and recording medium |
US9479957B2 (en) * | 2012-06-17 | 2016-10-25 | Lg Electronics Inc. | Method for reporting buffer status for device-to-device communication and apparatus therefor |
KR101924830B1 (en) * | 2012-06-19 | 2019-02-27 | 삼성전자주식회사 | Method and apparatus for synchronizing of terminal in wireless communication network |
US9648638B2 (en) | 2012-07-20 | 2017-05-09 | Lg Electronics Inc. | Method and apparatus for transmitting device-to-device related information in wireless communication system |
US9338726B2 (en) * | 2012-10-15 | 2016-05-10 | Qualcomm Incorporated | Cooperative data mules |
US9674881B2 (en) | 2013-05-08 | 2017-06-06 | Nokia Technologies Oy | Device to device beacon, user equipment discovery, and resource allocation |
US10257677B2 (en) * | 2015-10-16 | 2019-04-09 | Qualcomm Incorporated | System and method for device-to-device communication with evolved machine type communication |
-
2013
- 2013-07-22 US US14/413,662 patent/US9648638B2/en active Active
- 2013-07-22 WO PCT/KR2013/006531 patent/WO2014014324A1/en active Application Filing
- 2013-07-22 WO PCT/KR2013/006530 patent/WO2014014323A1/en active Application Filing
- 2013-07-22 US US14/409,392 patent/US9585163B2/en active Active
- 2013-07-22 WO PCT/KR2013/006536 patent/WO2014014326A1/en active Application Filing
- 2013-07-22 CN CN201380047058.5A patent/CN104620661B/en active Active
- 2013-07-22 CN CN201380041459.XA patent/CN104521157B/en active Active
- 2013-07-22 EP EP13820196.7A patent/EP2875666B1/en not_active Not-in-force
- 2013-07-22 EP EP13820634.7A patent/EP2875660B1/en not_active Not-in-force
- 2013-07-22 WO PCT/KR2013/006537 patent/WO2014014327A1/en active Application Filing
- 2013-07-22 EP EP19173451.6A patent/EP3547788B1/en active Active
- 2013-07-22 US US14/407,912 patent/US9357560B2/en active Active
- 2013-07-22 EP EP13819627.4A patent/EP2875691B1/en active Active
- 2013-07-22 CN CN201380042706.8A patent/CN104541539B/en active Active
- 2013-07-22 CN CN201380042647.4A patent/CN104541530A/en active Pending
- 2013-07-22 US US14/412,974 patent/US9629178B2/en active Active
- 2013-07-22 EP EP13819486.5A patent/EP2875593B1/en active Active
- 2013-07-22 WO PCT/KR2013/006532 patent/WO2014014325A1/en active Application Filing
- 2013-07-22 CN CN201380043492.6A patent/CN104584669B/en active Active
- 2013-07-22 ES ES13820017T patent/ES2734476T3/en active Active
- 2013-07-22 US US14/414,015 patent/US9668278B2/en active Active
- 2013-07-22 JP JP2015523017A patent/JP6141977B2/en active Active
- 2013-07-22 EP EP13820017.5A patent/EP2875693B1/en active Active
- 2013-07-22 JP JP2015523018A patent/JP6240189B2/en active Active
-
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- 2016-11-21 US US15/357,338 patent/US9756643B2/en active Active
-
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- 2017-03-20 US US15/463,971 patent/US9942905B2/en active Active
- 2017-08-08 US US15/671,921 patent/US10057905B2/en active Active
- 2017-11-01 JP JP2017211933A patent/JP6542327B2/en active Active
-
2018
- 2018-03-08 US US15/915,959 patent/US10327251B2/en active Active
-
2019
- 2019-05-01 US US16/400,455 patent/US10681704B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140120907A1 (en) * | 2009-10-23 | 2014-05-01 | Nokia Siemens Networks Oy | Systems, methods, and apparatuses for facilitating device-to-device connection establishment |
US20120214493A1 (en) * | 2009-10-27 | 2012-08-23 | Samsung Electronics Co. Ltd. | Communication method in a mobile communication system and a system thereof |
US20120100803A1 (en) * | 2010-10-20 | 2012-04-26 | Nokia Corporation | Delayed and conditional transport switch |
US20140036873A1 (en) * | 2011-04-28 | 2014-02-06 | Panasonic Corporation | Communication system, mobile terminal, router, and mobility management entity |
US20130109301A1 (en) * | 2011-11-02 | 2013-05-02 | Renesas Mobile Corporation | D2D Discovery Process |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10368340B2 (en) | 2010-04-01 | 2019-07-30 | Hon Hai Precision Industry Co., Ltd. | Network service exposure method and apparatus utilizing the same |
US9717074B2 (en) | 2010-04-01 | 2017-07-25 | Hon Hai Precision Industry Co., Ltd. | Relay user equipment device and status announcement method thereof |
US20150281940A1 (en) * | 2012-09-28 | 2015-10-01 | Nokia Siemens Networks Oy | Location registration for a device-to-device d2d communication user equipment being in idle mode mobility management |
US9723476B2 (en) * | 2012-09-28 | 2017-08-01 | Nokia Solutions And Networks Oy | Location registration for a device-to-device (D2D) user equipment |
US9215637B2 (en) | 2013-06-07 | 2015-12-15 | Intel Corporation | Buffer-aware radio resource management |
US9854623B2 (en) | 2013-06-07 | 2017-12-26 | Intel Corporation | Enhanced node B and methods for providing system information updates to user equipment with extended paging cycles |
US9288734B2 (en) | 2013-06-07 | 2016-03-15 | Intel Corporation | Traffic splitting based on latency between cells |
US9326207B2 (en) * | 2013-06-07 | 2016-04-26 | Intel Corporation | Enhanced node B and methods for providing system information updates to user equipment with extended paging cycles |
US9497682B2 (en) | 2013-06-07 | 2016-11-15 | Intel Corporation | Central processing unit and methods for supporting coordinated multipoint transmission in an LTE network |
US9609565B2 (en) | 2013-06-07 | 2017-03-28 | Intel Corporation | Mechanism to enable WiFi offload based on power preference of user equipment |
US20140362752A1 (en) * | 2013-06-07 | 2014-12-11 | Satish Chandra Jha | Enhanced node b and methods for providing system information updates to user equipment with extended paging cycles |
US10194482B2 (en) | 2013-06-07 | 2019-01-29 | Intel Corporation | Enhanced node B and methods for providing system information updates to user equipment with extended paging cycles |
US20150117295A1 (en) * | 2013-10-30 | 2015-04-30 | Electronics And Telecommunications Research Institute | Method and apparatus for device-to-device communication |
US20150148049A1 (en) * | 2013-11-25 | 2015-05-28 | Motorola Mobility Llc | Method and apparatus for allocating resources for device-to-device communication |
US10149280B2 (en) * | 2014-01-21 | 2018-12-04 | Qualcomm Incorporated | Device-to-device discovery signaling for radio resource allocation |
US20150208384A1 (en) * | 2014-01-21 | 2015-07-23 | Qualcomm Incorporated | Device-to-device discovery signaling for radio resource allocation |
US10225874B2 (en) | 2014-03-18 | 2019-03-05 | China Academy Of Telecommunications Technology | Resource allocation method and equipment for device-to-device signal transmission |
US10470160B2 (en) * | 2015-12-10 | 2019-11-05 | Samsung Electronics Co., Ltd. | Method and device for transmitting/receiving signal between linked devices |
US10314008B2 (en) * | 2016-11-04 | 2019-06-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for managing paging in a wireless communication network |
US11184874B2 (en) * | 2017-06-15 | 2021-11-23 | Lg Electronics Inc. | Methods and devices for transmitting and receiving paging channel in wireless communication system |
US11700543B2 (en) | 2018-09-25 | 2023-07-11 | Fujitsu Limited | Method and apparatus for transmitting data and communication system |
US20220075054A1 (en) * | 2020-09-04 | 2022-03-10 | Qualcomm Incorporated | Target detection using multiple radar waveforms |
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